Ti3SiC2-(Ti3SiC2-SiC) functionally graded materials by spark plasma sintering reactive synthesis method Part 1 - Gradient optimizations

W. Jiang, J. F. Zhang, L. J. Wang, R. Tu, X. Q. Yang, G. Chen, P. C. Zhai

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The graded structure of functionally graded materials can greatly reduce the residual thermal stress compared with non-graded interface of directly jointed materials. Finite element analysis was conducted to study the residual thermal stress induced on cooling from the sintering temperature of Ti 3SiC2-(Ti3SiC2-SiC) FMGs. For a circular disk shaped specimen with a fixed geometric size of Ti 3SiC2-(Ti3SiC2-SiC) FMGs, optimum grade layer number N as well as composition distribution exponent p for minimising residual stress is identified. The simulation results indicated that the optimum layer number N and composition distribution exponent p can not only reduce the stress level, but also make the stress distribute more uniformly.

Original languageEnglish
Pages (from-to)276-282
Number of pages7
JournalMaterials Technology
Volume25
Issue number5
DOIs
Publication statusPublished - 2010 Nov 1
Externally publishedYes

Keywords

  • Finite element analysis
  • Functionally graded materials
  • Residual thermal stress

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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